Inventor · disambiguated record
Masakatsu Sakamoto
Also filed as: HONMA ISAO · KARINO TAKAFUMI · SAKAMOTO MASAKATSU
23 granted patents·1 pending application·608 citations·filing 1974–2009
96Inventor score
Top patents by PatentIndex Score
24 records- 0197US4725345AMethod for forming a hard carbon thin film on article and applications thereofKENWOOD CORP·Filed 1986·Granted Feb 16, 1988·197 cites·15 claims
- 0290US4772513AMethod for forming a hard carbon thin film on article and applications thereofKENWOOD CORP·Filed 1987·Granted Sep 20, 1988·53 cites·9 claims
- 0382US5253301ANondirectional acoustic generator and speaker systemKENWOOD CORP·Filed 1990·Granted Oct 12, 1993·82 cites·9 claims
- 0478US4490044AAutomatic slurry concentration control systemHITACHI LTD·Filed 1983·Granted Dec 25, 1984·25 cites·7 claims
- 0575US4563112ASlurry transport systemHITACHI LTD·Filed 1985·Granted Jan 7, 1986·35 cites·3 claims
- 0671US3938912AHorizontal type hydrohoistHITACHI LTD·Filed 1974·Granted Feb 17, 1976·19 cites·13 claims
- 0769US4321016AApparatus for continuous slurry displacement transferHITACHI LTD·Filed 1980·Granted Mar 23, 1982·22 cites·7 claims
- 0868US4371294ASlurry conveyor systemHITACHI LTD·Filed 1981·Granted Feb 1, 1983·18 cites·4 claims
- 0968US4000927ACapsule hydraulic-transportation systemHITACHI LTD·Filed 1975·Granted Jan 4, 1977·20 cites·10 claims
- 1064US4126204ASpeaker systemKENWOOD CORP·Filed 1977·Granted Nov 21, 1978·26 cites·3 claims
- 1161US4231686AControl system of apparatus for transporting slurryHITACHI LTD·Filed 1979·Granted Nov 4, 1980·14 cites·3 claims
- 1260US4135600ALoudspeaker systemKENWOOD CORP·Filed 1977·Granted Jan 23, 1979·23 cites·1 claims
- 1358US4547132AApparatus for continuously transferring a slurry by liquid pressureHITACHI LTD·Filed 1984·Granted Oct 15, 1985·13 cites·5 claims
- 1458US4536131AApparatus for continuous pressure feeding of slurryHITACHI LTD·Filed 1984·Granted Aug 20, 1985·13 cites·2 claims
- 1553US4239423AApparatus for hydraulically transporting particulate solid materialHITACHI LTD·Filed 1979·Granted Dec 16, 1980·11 cites·5 claims
- 1651US4605356AApparatus for continuously pressure-feeding slurryHITACHI LTD·Filed 1984·Granted Aug 12, 1986·10 cites·1 claims
- 1750US2009185711A1Speaker unitKENWOOD CORP·Filed 2009·Application pending·0 cites
- 1842US4387595AFloat of slurry pressure feeding systemHITACHI LTD·Filed 1981·Granted Jun 14, 1983·7 cites·10 claims
- 1940US4129337AMethod for preventing erosion-corrosion of hydraulic capsule transportation apparatusHITACHI LTD·Filed 1976·Granted Dec 12, 1978·6 cites·11 claims
- 2034US4066298AHydraulically transported capsuleHITACHI LTD·Filed 1976·Granted Jan 3, 1978·5 cites·4 claims
- 2132US4164359AHydraulic transportation apparatus for solid materialsHITACHI LTD·Filed 1978·Granted Aug 14, 1979·3 cites·3 claims
- 2231US4310491AApparatus for supplying raw liquid and relieving pressure of high-pressure product liquidHITACHI LTD·Filed 1981·Granted Jan 12, 1982·2 cites·3 claims
- 2330US4145087ASystem for hydraulically transporting solid materialHITACHI LTD·Filed 1977·Granted Mar 20, 1979·2 cites·4 claims
- 2429US4996119ASpeaker cone plate and method of formingKENWOOD CORP·Filed 1989·Granted Feb 26, 1991·2 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →